ZDI-20-807: C-MORE HMI EA9 EA-HTTP Missing Authentication for Critical Function Remote Code Execution Vulnerability

This vulnerability allows remote attackers to issue commands on affected installations of C-More HMI EA9 touch screen panels. Authentication is not required to exploit this vulnerability. The specific flaw exists within the EA-HTTP.exe process. The issue results from the lack of authentication prior to allowing alterations to the system configuration. An attacker can leverage this vulnerability to issue commands to the physical equipment controlled by the device.

Affected Software

1 affected component
C-MORE HMI EA9

Event History

Feb 23, 2026
Advisory Published
via ZDI·06:25 PM
Data Sourced
via ZDI·06:25 PM
DescriptionSeverityAffected Software
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Frequently Asked Questions

1

What is the severity of ZDI-20-807?

The severity of ZDI-20-807 is classified as critical due to its potential for remote command execution.

2

How does ZDI-20-807 affect C-More HMI EA9 touch screen panels?

ZDI-20-807 allows remote attackers to issue commands on affected C-More HMI EA9 touch screen panels without authentication.

3

What versions of C-More HMI EA9 are impacted by ZDI-20-807?

All versions of C-More HMI EA9 that employ the EA-HTTP.exe process are impacted by ZDI-20-807.

4

How do I fix ZDI-20-807?

To mitigate ZDI-20-807, apply the latest firmware updates provided by C-More to secure the affected panels.

5

Is authentication required to exploit ZDI-20-807?

No, authentication is not required to exploit ZDI-20-807, making it particularly dangerous.

Contact

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